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Diffstat (limited to 'tools/debugserver/source/TTYState.h')
| -rw-r--r-- | tools/debugserver/source/TTYState.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tools/debugserver/source/TTYState.h b/tools/debugserver/source/TTYState.h new file mode 100644 index 000000000000..c01d51255439 --- /dev/null +++ b/tools/debugserver/source/TTYState.h @@ -0,0 +1,61 @@ +//===-- TTYState.h ----------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Created by Greg Clayton on 3/26/07. +// +//===----------------------------------------------------------------------===// + +#ifndef __TTYState_h__ +#define __TTYState_h__ + +#include <termios.h> +#include <stdint.h> + +class TTYState +{ +public: + TTYState(); + ~TTYState(); + + bool GetTTYState (int fd, bool saveProcessGroup); + bool SetTTYState () const; + + bool IsValid() const { return FileDescriptorValid() && TFlagsValid() && TTYStateValid(); } + bool FileDescriptorValid() const { return m_fd >= 0; } + bool TFlagsValid() const { return m_tflags != -1; } + bool TTYStateValid() const { return m_ttystateErr == 0; } + bool ProcessGroupValid() const { return m_processGroup != -1; } + +protected: + int m_fd; // File descriptor + int m_tflags; + int m_ttystateErr; + struct termios m_ttystate; + pid_t m_processGroup; + +}; + + +class TTYStateSwitcher +{ +public: + TTYStateSwitcher(); + ~TTYStateSwitcher(); + + bool GetState(uint32_t idx, int fd, bool saveProcessGroup); + bool SetState(uint32_t idx) const; + uint32_t NumStates() const { return sizeof(m_ttystates)/sizeof(TTYState); } + bool ValidStateIndex(uint32_t idx) const { return idx < NumStates(); } + +protected: + mutable uint32_t m_currentState; + TTYState m_ttystates[2]; +}; + +#endif
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